Adjustable mold.



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inarrnn sriifrns PATENT orinon.

THEODORE (i. JOHNSON, OF

ADJUSTABLE MOLD.

KANSAS CITY, MISSOURI.

Specification of Letters Patent. Application tiled April ll. 1905. Serial No` 254,959.

No 819,229. :atenten May 1, 1906.

with hinged partitions 16, which may be airanged either in alineiiient with sides 14, as shown by full lines, Fig. i, or at right angles thereto, as shown by dotted lines in said Iig- Be it known that I, Tiinoiioian G. JoiixsoN, a citizen of the United States, residing fo (/7/ ir'm'nt 'it 7124/1/ rauwe/v: j l at hansas City, in the county of Jackson and l State of Missouri, have invented certain new ure. IV hen the partitions occupy either of and useful Improvements in Adjustable the positions shown,tlieyabutagainst lugs 17 Molds, of which the following 1s a specilicaon the interior of thc casing and are further tion. held from accidental movement by spring` My invention relates to improvements in latches I8, adapted to engage notches 19 in adjustable nolds employed in the production i the side plates or notches 2() 2l in the back of lniilding-blocks;and itconsists in the novel and faceplates, respectively. Core 13 is construction, combination, and arrangement provided with a pair of transverse handles 22, of parts hereinafter described, and pointed so that it may be raised vertically from the out inthe claiiils. casing without chipping or otherwise injur- In order that the invention may be fully ing the blocks. understood, reference will now be made to 23 designates Yfilling-blocks detachably sethe accom panying drawings, in which` cured to the opposite sides of the core by pins Figure I represents a plan view of my im- 24 for the purpose of forming recesses 25 in proved niold in position ready for use. Fig. 2 the inner sides of the blocks to save material is a front elevation of same. Fig. 3 is a side and lighten said blocks. (See Fig. 4f.) elevation of same. Fig. et shows the mold in 26 designatestwoverticalgroovesarranged an open condition after two coriier-blocks diagonally opposite each other in the ends of have been formed therein. Fig. 5 represents `the core for the reception of detachable parone style of block produced in my adjustable titions 27, inserted in the core-box when it is mold. Fig. 6 shows a veneering-block prodesired to produce the veneering-blocks. duced in the nold. The outer ends of partitions 27 abut against In carrying out my n lugs 28, formed integral with the side plates rectangular casing comprising a back plate 1, to prevent said partitions from swinging side plates 2, secured to the opposite ends of backwardly from pressure of the material bethe back plate by hinges 3, and a face-plate 4. ing tamped in the mold.

Side Vplates 2 are provided with lugs 5, to

29 designates two strips, semicircular in which ecceiitiics 6, having handles 7, are pivcross-section, secured to the oil-bearing plate otally secured. Face-plate 4 has open slots S 1t) for the purpose of forming air-channels 30 at its opposite ends for the reception of lugs in the ends of blocks 3l 32. 5 when the box is in a closed position, so that 1b designates a pair of brackets secured at eccentrics 6 may be brought to bear against their lower horizontal portions to a platform said .face-plate in order to force it tightly into lC and at their vertical portions to the back contact with the forward edges of side plates plate in order to support the casing, so that 2. lface-plate 4.- is provided near its ends when the latter is opened the olf-bearing with lugs 9, which engage the side plates and plate, with its blocks, maybe moved a suitprevent the latter from accidentally swinging able distance from the mold to dry. open while the concrete or other material .In piactice when it is desired to produce employed in the construction ofthe blocks is l building-blocks 32 'for a two-piece wall the being tamped in the mold. hinged partitions 16 are adjusted to the posi` The lower portions of back plate l, side tion shown by full lines, Fig. l. The mateplates 2, and face-plate 4 are reduced in rial is then placed in compartments 33, where thickness to form shoulders l, 2, and 4, reit is thoroughly tainped, and after said coinspectively, which overlap the edges of an oil'- partineiits have been I'lled the upper sides of bearing plate It) to forni tight joints between the blocks are leveled by drawing a straightsaid plates. Ott-liearing plate l0 is mounted edge across the upper surface of the casing. upon rollers l1, and the truck thus produced he easing is then opened by removing l'aee` is arranged to travel upon a track l2 when plateelainlswinging the sideplates outwardly conveying the lniilding-blocks from the mold.

to the position shown in Fig. 4. Core 13 is I3 designates a core comprising two paralthen raised vertically troni between the invention I emplov a lel sides I-Iand two cuadrant-sha )ed ends 15 blocks ins 24 beimT )i'eviouslv removed so l E l 7 p n formed integral with said sides andl rovided that the illinfblocks 23 will remain in the IOO IIO

building-blocks. The latter are then conveyed from the mold a suitable distance on the off-bearing plate 10 and left to dry, another off-bearing plate being placed beneath the casing preparatory to the production of two more locks. The filling-blocks 23 are removed from the building-blocks before the latter are conveyed from the mold, so that they may be again attached to the core after the latter has been placed in position in the casing. en it is desired to form cornerblocks 31, partitions 16 are adjusted to the dotted positions shown in Fig. 1, and when it is desired to produce veneering-blocks 34 partitions 27 are placed in their respective positions.

By thus providing a mold wherein two blocks may be formed it is evident that considerable time will be saved, as the operator need not stop to open and close the casing for each block. By mounting the off-bearing plate upon rollers and having the latter travel upon a track only one workman will be required to produce and take the blocks from the mold, whereas heretofore it has required the services of two men to lift the oH-bearing plate, with its load, and carry it from the mold.

The advantage in `making the ends of the core quadrant-shaped is that it permits of additional thickness at the corners of blocks 31 32, so that the latter will not be liable to becorne broken at these points.

Having thus described my l claim, and desire to secure ent, is-d 1. An adjustable mold consisting of a casing, an off-bearing plate adapted to be placed and removed from beneath said casing, a core invention, what by Letters Patseparable from the casing and the obearing plate, partitions hinged to said core, and means for locking said partitions from accidental movement.

2. An adjustable mold consisting of a casing having notches in its upper surface, an off-bearing plate arranged beneath said casing, a core separable from the casing and the off-bearing plate, partitions hinged to two diagonal corners of said core adapted to be arranged in alinement with the sides of the core or at right angles thereto, and latches sesaid filling-blocks to the core,

cured to the partitions adapted to engage the notches in the casing.

3. An adjustable mold consisting of a casing, an off-bearing plate adapted to be placed and removed from beneath said casing, a core separable from the casing and the off-bearing plate and adapted to rest upon the latter, and partitions detachably secured to said core and casing.

4. A mold for building-blocks consisting of a casing, an off-bearing plate arranged beneath said casing, a core arranged in the casing and resting upon said off-bearing plate, filling-blocks of less height and length than said core, and pins for detachably securing said pins being be withdrawn through the interior of the core so the latter may be removed from the casing and leave the filling-blocks embedded in the building-blocks, substanti ally as described.

5. In a mold for building-blocks, the cornbination of a track, a platform located at one end thereof, a casing supported by said platform above the track, and of an off-bearing plate arrange l beneath the casing and rollers carrying said oH-bearing plate and arranged to travel upon the track, substantially as described.

6. ln a mold for building-blocks, in combination, a track, a truck arranged to travel thereon, and a casing fixed above said track and provided with adjustable walls adapted to embrace the upper portion of the truck, substantially as described.

arranged to a truck consisting 7. The combinationwith a track, of a truck consisting of an obearing plate and rollers mounted upon the track and carrying said off-bearing plate, an adjustable casing arranged to inclose the off-bearing plate, a core separable from the casing and the off-bearing plate arranged to rest upon the latter, and strips secured to the off-bearing plate and arranged between the casing andthe core.

In testimony whereof l in the presence of two witnesses.

THEODORE G. JOHNSON.

Witnesses:

J. MOORE, F. G. FISCHER.

affix my signaturel 

